经颅直流电刺激
脚踝
神经科学
脑电图
静息状态功能磁共振成像
BETA(编程语言)
物理医学与康复
心理学
β节律
阿尔法(金融)
初级运动皮层
运动皮层
刺激
医学
计算机科学
病理
发展心理学
结构效度
程序设计语言
心理测量学
作者
Songlin Xiao,Bin Shen,Chuyi Zhang,Xini Zhang,Suyong Yang,Junhong Zhou,Weijie Fu
出处
期刊:Cerebral Cortex
[Oxford University Press]
日期:2023-03-16
卷期号:33 (12): 7670-7677
被引量:1
标识
DOI:10.1093/cercor/bhad070
摘要
This study aimed to investigate the cortical responses to the ankle force control and the mechanism underlying changes in ankle force control task induced by transcranial direct current stimulation (tDCS). Sixteen young adults were recruited, and they completed the electroencephalogram (EEG) assessment and high-definition tDCS (HD-tDCS) sessions. Root mean square (RMS) error was used to evaluate ankle force control task performance. Spectral power analysis was conducted to extract the average power spectral density (PSD) in the alpha (8-13 Hz) and beta (13-30 Hz) bands for resting state and tasking (i.e. task-PSD). The ankle force control task induced significant decreases in alpha and beta PSDs in the central, left, and right primary sensorimotor cortex (SM1) and beta PSD in the central frontal as compared with the resting state. HD-tDCS significantly decreased the RMS and beta task-PSD in the central frontal and SM1. A significant association between the percent change of RMS and the percent change of beta task-PSD in the central SM1 after HD-tDCS was observed. In conclusion, ankle force control task activated a distributed cortical network mainly including the SM1. HD-tDCS applied over SM1 could enhance ankle force control and modulate the beta-band activity of the sensorimotor cortex.
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